Sash guide



W. S. HAMM June 23, 1931 SASH GUIDE Filed July 22, 1929 'I/IIIIII'II/I/A VIII/Ill 9. sition in the guide.

Patented June 23, 1931 UNITED STATES PATENT OFFICE WILLIAM s. HAMM, 0F ELKHART, INDIANA, ASSIGNOR-TO THE ADLAKE COMPANY, or CHICAGO, LLINQIS A CORPORATION or ILLINOIS sAsH GUIDE Application filed July 22,

ployed for holding the retaining strip against displacement.

The primary object of the invention is to provide a simple, inexpensive and depend able device which will tend to hold the retaining strip of a guide in proper position but will yield to permit disengagement of the strip when a force in excess of a certain amount is applied to thestrip in a direction in which the strip is not ordinarily subjected to any appreciable force.

Other objects and advantages of the in vention will be apparent upon a full understanding of the construction, arrangement and operation of the improved device' Two different forms of theinvention are presented herein by way of illustration, but it will of course be appreciated that the invention is capable of being incorporated'in still other structurally modified forms coming within the scope of the appended claims. i

i In the accompanying drawings:

Fig. l is a fragmentary front view of a sash guide equipped with one form of the device of the invention; I a

Fig. 2 is a side view of the guide;

Fig.3 is a partially sectioned rear view of the guide V 7 Fig. 4 is a side. view of the retaining strip which forms a part of the guides; 7

Fig.5 is a transverse section, taken on the line 5-5 of Fig. 3, showing a-sash in position in the guide;

Fig. 6 is a fragmentary front view of a sash guide equipped with another form of the device of the invention Fig. 7 is a side View of the guide shown in Fig. 6;

Fig. 8 is a partially sectioned rear View of the guide shown in Fig. 6;

Fig. 9 is a side view of the retaining strip of the guide shown in Fig. 6; and

Fig. 10 is a transverse section, taken on the line 10l0 of Fig. 8, showing a sash in p0- 1929. Serial No. 379,925.

Having reference first to the form of the invention shown in Figs. 1 to 5 inclusive, it will be observed in those views that the sash guide with which the device is associated consists of a strip 10 which is adapted to be fixedly attached in a more or less permanent fashion to a window jamb 11, and a sash-- retaining strip 12 which is removably carried by the strip 10. The strip 10 is shown as having an outwardly projecting flange 18 at one side thereof and an inwardly projecting groove 1.4 at the other side. The flange 13 forms one of the sash-engaging side walls of the guide, while the groove 14 receives a portion of the strip 12 and positions the remaining portionof such strip in generally parallel relation to the flange 18- whereby to form the other sash-engaging side wall. a

The removable sash-retaining strip 12 is detachably interlocked with the fixed strip 10 by means of a number of L-shaped bayonet slots 15 which are out in the strip 12 and interlock with a corresponding number of studs 16 which are carried by. the strip 10 in positions'crosswise of the groove 14. In attaching the strip 12 to. ti e. strip:10, the former is first moved" horizontally into the groove 14 and then shifted downwardly to complete the bayonet interlock. In removing the strip 12 from the strip 10, the former is first shifted upwardly and then, moved horizontally out of the groove.

The particular sash guidestructure'thus far described is the invention of John F.

Levan and is disclosed and claimed in recently issued Patents, Nos. 1,659,657 and 1,659,658. The present invention resides in the means hereinafter set forth for yieldingly resisting the up and down shifting movement of the removable strip while positioned in the groove in the fixed strip.

On the back of the central web like portion 17- of the fixed strip is a finger l8 which is pivoted to the fixed strip at 19 and extends laterally through a vertically elongated slot 20 inthe adjacent side wall of the groove 14. The tip of the finger 18 projects into a narrow slot 21 in the inner edge .of the removable-strip 12 and is caused to move with the strip 12 when the latter is shifted either up or down to release or establish the bayonet interlock. A protuberance 22 is formed on the back of the fixed strip below the finger 1S and serves as a cam over which a resilient projection 23 on the pivoted end of the finger 18 must ride when the tip of the finger is swung by the shifting of the strip 12 into either one of its extreme positions. The action of the projection 23 against the protuberance 22 gives the tip of the finger 18 a yielding resistance to movement, with the result that, after the removable strip 12 has been moved inwardly and downwardly into interlocked association with the strip 10, the finger 18 tends to yieldingly resist any movement of the strip 12 which might result in the same becoming disengaged from the strip 10.

In order to release the strip 12, the end of a screw driver or other pointed implement may be inserted into a notch 24 in the exposed outer portion of the strip 12 to give a purchase on the strip, and, with such tool, the strip 12 may be moved upwardly with sufiicient force to overcome the yielding resistance ofiered by the finger 18, after which the strip 12 may be withdrawn laterally with ease.

In the modification shown in Figs. 6 to 10 inclusive, the device employed for yieldingly resisting the verticalmovement of the removable strip 25 with respect to the fixed strip 26 consists of a laterally shiftable plunger 27 which is housed within a. small guide bracket 28 secured to the back of the fixed strip. The plunger 27 is provided at one end with a rounded nose 29 which projects through an aperture 30 in the adjacent side wall of the groove 31 in the fixed strip, and a spring 32 encircles the plunger 27 behind an enlarged portion 33 thereof and serves to press the nose 29 of the plunger into the groove 31'. The face of the enlargement33 adjacent the nose 29 abuts with the adjacent side wall of the groove 31 about the aperture 30 and limits the extent to which the nose 29 can be projected into the groove by the spring.

\Vhen the removable strip 25 is inserted in the groove 31 prior to being shifted downwardly into interlocked association with the fixed strip 26, the inner edge of the removable strip engages with the nose 29 of the plunger and cams the same back into the aperture 30. When the removable strip is shifted downwardly to complete the bayonet interlock, the nose 29 of the/plunger springs outwardly again into a depression 34 in the removable strip, Where it acts, in cooperation with such depression, to yieldingly resist vertical movement of the removable strip;

I claim:

1. In a. sash guide, a fixedistrip, a'removable strip carried thereby, a connection therebetween which is releasable upon movement of the removable strip in one direction, and means for yieldingly resisting movement of the removable strip in that direction.

2. In a sash guide, a fixed strip, a removable strip carried thereby, a connection therebetween which is releasable upon movement of the removable strip in one direction, and means carried by the fixed strip for yieldingly resisting movement of the removable strip in that direction.

3. In a sash guide, a fixed strip, a removable strip carried thereby, a connection thereb'etween which is releasable upon movement of the removable strip in one direction, and resiliently yieldable means tending to hold the removable strip against movement in that direction.

4. In a sash guide, a fixed strip, a removable strip carried thereby, a connection therebetween which is releasable upon movement of the removable strip in one direction, a member carried by the fixed strip in engagement with a recess in the removable strip, and spring means acting through said member to resist movement of the removable strip in that direction.-

5. In a sash guide, a fixed strip, a removable strip carried thereby, a connection therebetween which is releasable upon movement of the removable strip in one direction, a finger pivoted to the fixed strip and extending laterally into a recess in the removable strip, and means for yieldingly resisting pivotal movement of the finger whereby to hold the removable strip against releasing movement, said finger being caused to move pivotally when the removable strip is moved longitudinally.

6. In a sash guide, a fixed strip, a removable strip carried thereby, a connection therebetween which is releasable upon movement of the removable strip longitudinally of the fixed strip, and a laterally-extending spring-pressed plunger" carried by the fixed strip in engagement with a recess in the removable strip for yieldingly resisting longitudinal movement of the latter.

In witness whereof I have hereunto subscribed my name.

WILLIAM s. HAMM. 

